Replace constant time from ring with subtle

[ctron]

This PR tries to start working towards #58 … but chopping it down into smaller pieces.

[codecov[bot]]

Codecov Report

Merging #89 (5956f37) into main (32603ad) will increase coverage by 0.07%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main      #89      +/-   ##
==========================================
+ Coverage   72.11%   72.18%   +0.07%     
==========================================
  Files          16       16              
  Lines        3794     3793       -1     
==========================================
+ Hits         2736     2738       +2     
+ Misses       1058     1055       -3     

Impacted Files	Coverage Δ
src/types.rs	70.74% <100.00%> (+0.91%)	:arrow_up:
src/verification.rs	86.22% <100.00%> (ø)

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[ramosbugs]

Codecov Report

Merging #89 (d1ce1f3) into main (2f79ac2) will decrease coverage by 22.74%. The diff coverage is 100.00%.

...that's definitely not right, Codecov.

[ramosbugs]

Hopefully #90 will help with the coverage weirdness

[ctron]

I updated the PR.

[ctron]

Is there something I need to do?

[ramosbugs]

Looks like CI is failing due to a clippy lint. Once it passes I'll merge the PR.

[ctron]

Sorry, fixed that. And rebased too.

[ramosbugs]

thanks!